Set Page-Level Control Properties in .NET MAUI

Name the control, e.g., <RadioButton x:Name="male"/>.

In the handling class, reference the using Microsoft.Maui.Handlers; namespace, and add property control code in the NavigatedTo method.

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#if WINDOWS
IRadioButtonHandler? handler = radioButtonMale.Handler as RadioButtonHandler;
if (handler != null)
{
    handler.PlatformView.IsTabStop = true;
    handler.PlatformView.UseSystemFocusVisuals = true;
}
IRadioButtonHandler? handlerf = radioButtonFemale.Handler as RadioButtonHandler;
if (handlerf != null)
{
    handlerf.PlatformView.IsTabStop = true;
    handlerf.PlatformView.UseSystemFocusVisuals = true;
}
#endif

In the OnAppearing method, use the Loaded event to set properties and execute methods.

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protected override void OnAppearing()
{
    base.OnAppearing();
    number.Loaded += delegate { number.Focus(); };
    male.Loaded += Male_Loaded;
    female.Loaded += Female_Loaded;
}
private void Female_Loaded(object? sender, EventArgs e)
{
#if WINDOWS
    IRadioButtonHandler? handler = female.Handler as RadioButtonHandler;
    if (handler != null)
    {
        handler.PlatformView.IsTabStop = true;
        handler.PlatformView.UseSystemFocusVisuals = true;
    }
#endif
}

private void Male_Loaded(object? sender, EventArgs e)
{
#if WINDOWS
    IRadioButtonHandler? handler = male.Handler as RadioButtonHandler;
    if (handler != null)
    {
        handler.PlatformView.IsTabStop = true;
        handler.PlatformView.UseSystemFocusVisuals = true;
    }
#endif
}